Considered Britain's most threatened butterfly, the high brown fritillary can be only be found in a few areas of England and Wales.

Found on rocky shores and seabeds, the Keyhole limpet gets its name from the little hole at the tip of its shell.

A small colourful sea slug that can be found grazing on sea mats on the rocky shore and beyond the low water mark.

This dainty white butterfly is now only found in a few parts of Britain, where it flutters slowly through woodland clearings.

The migrant hawker is not a particularly aggressive species, and may be seen feeding in large groups. It flies late into autumn and can be seen in gardens, grasslands and woodlands.

Found almost everywhere, the large yellow underwing is a night-flying moth that is often attracted to lights. It is brown with orangey-yellow hindwings.

A summer visitor to the UK, the red-tailed redstart is a robin-sized bird that can be spotted in woodlands, parks and hedgerows, mainly in the north and west of the UK.

This well-camouflaged woodpecker used to be a common breeding bird in Britain, but is now only likely to be seen passing through on migration.

Field elm suffered declines due to the devastating effects of Dutch elm disease, but can still be found across much of the UK.

Although they might not look it, sea cucumbers like this one belong to the Echinoderm group and are therefore closely related to starfish and sea urchins